Music startup Riffusion has recently secured $4 million in funding, which will be used to develop its AI-powered music creation technology. This round of financing was led by venture capital firm Greycroft Partners. Riffusion utilizes AI technology to generate custom music pieces within seconds, based solely on user descriptions of lyrics and musical style, attracting attention from tech giants. This funding will aid Riffusion in transforming from an amateur hobby project into a mature AI music company. Riffusion has expressed its intention to handle the legal and ethical issues related to AI creation with caution.